Optical element



FIG. 1 is a left side perspective view of an optical element.

FIG. 2 is a right side perspective view of the optical element of FIG.1.

FIG. 3 is a top perspective view of the optical element of FIG. 1.

FIG. 4 is a bottom perspective view of the optical element of FIG. 1.

FIG. 5 is a front perspective view of the optical element of FIG. 1.

FIG. 6 is a rear perspective view of the optical element of FIG. 1; and,

FIG. 7 is a three-quarter perspective view of the optical element ofFIG. 1.

The ornamental design for an optical element, as shown and described.